ORGANIC ELECTROLUMINESCENT DEVICE

摘要

Provided is an organic electroluminescent device for emitting blue light, which has high luminous efficiency and good drive durability. This organic electroluminescent device for emitting blue light includes an anode 2 , a cathode 6 , and a layer which contains an organic compound interposed between the anode 2 and the cathode 6 , the layer which contains an organic compound including at least a light-emitting layer 4 , wherein the light-emitting layer 4 contains a bipolar host having a hole mobility and an electron mobility of 10^-4 cm²/s or greater, a light-emitting dopant and a carrier trapping dopant, and the light-emitting dopant energy gap E_gB, the bipolar host energy gap E_gh, and the carrier trapping dopant energy gap E_gd are such that E_gd>E_gh>E_gB.